If ice is softer than rock, how can ice produce striations on materials harder than ice?

That's because glaciers have rocks embedded in them, which cause these striations.

Wikipedia aswell can be used to solve the following questions

Tamarind can be grown on homesteads, plantations, and wasteland or as a forest tree. methods of propagating tamarind there are two methods of propagating tamarind trees: seed propagation and vegetative propagation. seed propagation: it involves the collection, preparation and direct planting of the seed.answer from google full credit to google.